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Pediatric Board Prep Questions


Just like the actual exam

Aligned with the National Board of Medical Examiners format. Authored & peer-reviewed by faculty, clinicians, and clerkship directors.

Each question is written to resemble the format and topics on the exam, meaning you won’t see any negatively phrased questions, no “all of the following except,” no “A and B”…you know what we mean. Most importantly, all questions include selective distractors (incorrect answer choices), which will help you think critically.

  • Must address important content
  • Must be well structured


A 6-year-old girl, who had been camping in Vermont the week prior, is admitted from the ED after 5 days of fever, headache, and myalgias. On the day of admission, she developed a widespread maculopapular rash on her torso and extremities, including the palms and soles. Physical exam reveals an ill-appearing girl with intermittent confusion and hepatosplenomegaly. Laboratory findings include leukopenia, thrombocytopenia, hyponatremia, and elevated transaminases. Which one of the following tests is most likely to lead to the diagnosis at this time?
A ELISA for Lyme disease
B Heterophile antibody test
C IgG antibody titer for Rocky Mountain spotted fever
D PCR amplification of Ehrlichia chaffeensis
Correct Answer Distractors
This patient has symptoms consistent with human monocytic ehrlichiosis, a tick-borne infection spread by Amblyomma americanum, or lone star ticks. The most commonly responsible organism, Ehrlichia chaffeensis, is a gram-negative, small, obligate intracellular bacterium. States with the highest incidence of human monocytic ehrlichiosis in recent years include New Hampshire, Vermont, Rhode Island, Delaware, Virginia, Kentucky, Tennessee, Missouri, Arkansas, Kansas, and Oklahoma. Most cases are seen predominantly in May through September, largely because there are higher numbers of lone star ticks during this time. Symptoms typically present between 2 and 21 days after the tick bite, although approximately one-fourth of patients have no history of a known tick bite. Feverheadache, and myalgias are the most frequently reported symptoms. The majority of children develop a rash, and about one-half develop organomegaly and lymphadenopathy. Altered mental status may also be present, and other symptoms may include nausea, vomiting, or abdominal pain. Laboratory evaluation often reveals leukopenia, thrombocytopenia, hyponatremia, and elevated transaminases, as this patient has. During the acute phase of illness, PCR amplification of Ehrlichia chaffeensis is the most sensitive diagnostic method, as antibody titers are often negative. However, a comparison of acute and convalescent IgG antibody titers by indirect immunofluorescence assay may be diagnostic if there is a fourfold rise.


Written with a purpose

Understanding why an answer choice is incorrect is just as important as knowing why one is correct. That’s why every Rosh Review question includes detailed explanations for the correct and incorrect answer choices. These comprehensive summaries link the most important components of a topic—from risk factors to diagnostics and treatment—giving you the context to build relationships between them.

  • Created for optimal learning and recall
  • Help reinforce your knowledge
  • Focus on the essential information


Created to enhance learning

Custom illustrations and tables help further clarify the core concepts. When information is presented visually, you can focus on meaning, easily reorganize and group similar ideas, and make better use of your memory.

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One Step Further

Taking your learning to the next level

After each explanation is a straightforward question with a simple, memorizable answer that reinforces the corresponding topic.

  • Strengthens your knowledge
  • Stands alone from the main explanation so you’re not rereading content


True or false: transmission of ehrlichiosis from a tick requires 1–2 days of tick attachment to a human.

Reveal Answer

Ehrlichiosis and Anaplasmosis

  • Vector: ticks, avoid tick bites and remove ticks from body
  • Febrile illness, headache, myalgia, rash, chills
  • Labs show leukopenia or thrombocytopenia
  • Test whole blood PCR, do not delay treatment
  • Treatment: doxycycline

Rapid Review

Keeping things simple

These bulleted reviews focus on condensed, high-yield concepts about the main topic, from patient presentation to preferred management.

  • Cover the fundamentals in one list
  • Allow you to quickly scan the must-know information


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Attending Physician

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